Jacquard mechanism for looms



Patente June Z6, 1928.,

, rre stares EDWARD J. DACEY, OF VVORGESTER. MASSACHUSETTS. .ASSIG-NOR TO CROMPTON & KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORIPORATION OF MASSACHUSETTS.

JACQUARD MECHANISM FOR LOOMS.

Application led August 11, 1924. Serial No. 731,303.

This invention relates to jacquard mechanism for looms such as are used in the weaving of carpets and other textile fabrics.

It is the object of my invention to provide a jacquard construction by which the same pattern mayA be woven in many different color combinations while at the same time using the same sets or series of pattern cards and without changing` the connections of the warp threads to the jacquard cords. Y

To the attainment of this object, I preferably provide a separate jacquard mechanism and a separate set of cards for each different kind or color of warp. The different sets of pattern cards are interchangeable in the different jacquard mechanisms and by placing different. sets of cards in different jacquard mechanisms a large number of ldifferent color combinations` may be obtained.

A preferred form of my invention is shown in the drawing which is a front elevation of my improved jacquard mechanism and parts of a loom associated therewith.

Referring to the drawing, I have shown a loom frame 10 in which is mounted a shaft 11 having crank arms 12 connected by links 13 and crank arms 14 on an oscillating shaft 15. The shaft 15 is mounted in bearings in a frame or support 16 which may be secured to the loom frame 10.

Un the support 16 I have provided a series of separate jacquard mechanisms 17 18, 19, Q0 and 21. Each of these mechanisms contains a series of lifter wires 22, lifter bars 23 and other usual parts of a jacquard mechanism. The particular construction shown in the drawing corresponds to my co-pending application, Serial No. 735,258, filed Sept. 2,'

1924. Patent No. 1,631,529, but any other usual form of jacquard mechanism may be substituted therefor.

Each jacquard mechanism 17 to 21 is provided with a separate series of pattern cards (not shown) and these cards are interchangeable in the different jacquard mechanisms. The lifter wires in each of the different jacquard mechanisms are connected to one particular kind or color of warp thread throughout the width of the fabric.

For instance, the jacquard mechanism 17 The number of lifter wires and the size of the pattern cards f will be substantially smaller than those used in the ordinary jacquard mechanism which controls all of the colored warps in the fabric.

The particular object in providing separate jacquard mechanisms and separate cards for the different colors is to permit changes in the color combinations. If, for instance, it is desirable to vary the fabric by using red in place of blue and blue in place of red in a given design, it is merely necessary to interchange the cards between the jacquard mechanisms 17 and 19. In the same way, other changes in the color combinations can be made, almost without limit. Thus, with a single set-up of the loom and a single outfit of sets of pattern cards, the same general design of fabric may be produced in a great variety of colors by simply shifting the sets of pattern cards between the jacquard mechanisms. Obviously the number of different jacquard mechanisms may sometimes bereduced, as two or more separate sets of pattern cards may be used in a single jacquard mechanism, provided the jacquard cylinder is of sufficient length.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed otherwise than as set forth in the claim but what I claim isz- The method of weaving fabric-s with different color combinations which consists in providing a number of jacquard units and a number of sets of pattern cards corresponding to the different colors of warp, each jacquard unit and each set of cards controlling all lof the warps of a given color across the width of the fabric, and in interchanging said sets of pattern cards on said jacquard units to produce different color combinations.

In testimony whereof I have hereunto aflixed my signature.

EDWARD J. DAGEY. 

